Sectional rubber pavement



,kent. 20, 1927.

A.-F. MASURY ET AL SECTIONAL RUBBER PAVEMENT Filed July 17, 1924 2Sheets-Sheetl ATTORNEYS 1 4 1643,024 Sept 927 A. F. MASURY ET ALSECTIONAL RUBBER PAVEMENT Fi-ld July 17, 1924 2 Sheets-SheetZ WW T mgdrawings illustrating preterr'edlembodivPatented Sep t. 20,- 1927.

Arrnn n airmig tiip e w w nstnrrnnr; or NElW 'YOBK, N. Y; nssrenons TO ITERNATIQNAL oron COMPANY, or new ironic-N. Y., AcoRPonATIoN-oF E AWARThis invention relates a roadways and I 10 suchltravel. 'Sucha'paving isbroadly illustrated inthe copending'application of August I-IJLeipert'SeifJNo. 722,648 filed June "2111924.. 'The present invention has to doprimarily with various practical applical5 tions fofthefbroad"principledescribed in the.

I application; Inorder'thatthe invention may be clearly understoodfandreadily carried into efiect the'sam'e will now be described more fullywith. reference to the accompanyments thereoffand' in which:

V form otpavifig block andftheineans for maintaining it" under internalstatic pressurewhich also serves as interlocking means with adjacentblocks j I jv bigure'2 is arvlefwmsrde elevation show-iingthepavingblock according to Figure" '1. v

Figure 3 ti'sj a'p laniview showinganother modification ofthefpavi'ng"block 'and the I so Figure 4- is a'yertical' seotional viewtaken inthe' planeindi'cated-by' the line 4 in F igure- 3 and looking inthe direction of the arrows. p f Figure 5" is aview partlyin section ofanother modification ofthe invention showing- I the means for adjusting"the compression on;

an individual paving block."

--Figure- 6 is a view showing the pavlng block "illustrated in Figure '5e and looking from above. I

F igurejis a verticalsectional view showing anotherflform 'of ,-:pavingblock and the mechanical "means for retaining it under compression. s

Figure 8 is a View showing the paving block disclosed in Figure 7 andlooking from above. 1

Figure 9 is a view showing another modification of-the pavementaccording to the present, invention and means for placing theindividualblocks under compression.

V disposed means for maintaining it under-compress1on.*

snougronnn RUBBER rnvnivrnnri It is Proposed} accOrdinglto' th Presentinvention, that the paving block shall consist of a'massoffyieldingmaterial, such as live rubber, suitably associatedwith' means which" mayvaryin particular instances to sure; By'so retaini'ngthe block the'resil '1ency,stre1rgth'and wearing qualities of the yielding massare'materially improved. In

Figures 1 and 2 of the drawingsthere is illustrated'a block comprising asolid mass" ret'ain the block under internal static presbase I) to formapavement'and' encircled 7 throughout the major portion'of its height Iby a band'c of metallic material drawn tight- 1y about the block wherebythe'resilient ma terial therewithin' may be maintained undercompression. The two free endsof the band are preferably interlocked asat c" to form jection or tongue on "that end face of the p p c f l t.only a permanent joint but also a prop I Figure l isa sectional vlewshowlng one band-"to interlock with'a co operating groove c inthe'respective diametrically disposed faceo'f'an adjacent block. Itwill'thus be se 'an"that; apaving block has been providedwhich"issubstantially rectangular in horizontal oro's'ss'e'ction andwhich is formed in one of-its'shorter e'ndfaces with a vertically grooveand in the other of its shorter end faces'witha vertically disposed tonuel lVhen laying the pavement," the bloc s are 'laid'betw'een thecurbs'so that the proximate en'd faces 'are juxtaposed which will serveto compress somewhat the uncompressed edges a to forma'solidyieldbetween the respective blocks;

In Figures?) and 4;;there is disclosed a plurality of paving blocks in"which the lng pavement without cracks or open oints sha ebf therespective blocks'is relied upon to maintain the same under the desiredThe blocks are internal static pressure. formed generally wedged-shapein horizontal cross'section so that in'laying the same between the curbsb an individual block may be forced in a horizontal direction betweenadjacent blocks. One of the blocks cl is shown as formed in opposedvertical faces with horizontally extending grooves d adapted toco-operate with the horizontally extending tongues e of the adjacentblocks 6. The longer sides of blocks d and e are 7 to receive the wrenchengaging portion 'with-thebeveled faces f of the block. Midway betweenthe ends of the grooves f the block is further hollowed out slightly asat g of the lag screw. It will thus be seen that 'upon assembly of thelag screws 9 and recs tangular retaining elements 72/ the block may beplaced under compression by taking up on the lag screws in usual manner.As a pavement, the blocks are laid upon a solid base 6 in closeproximity, the top and bottom faces of the block 7, f respectivelytaking the wear and spacing the metallic portions from the contactingelements 7 whereby shocks and stresses are relieved.

In Figures? and 8, means are disclosed for obtaining substantially thesame result's. In this instance, substantially rectangular blocks 5having beveled edges 2" are retained'under'compression by rectangularmetallic frames 7' whereof the extremities j are turned away from theresilient material to avoid a sharp edge which would wear the material,while the proximate edges of the plates j are interlocked as at jl Itwill be apparent that, upon assembling the block 11 with a pair of framemem-. bers j, the block can be placed under the desired internalcompression by suitably bending over and interlocking the proximateedges"at 9' Here again the surface of the block resting upon the base I) isof yielding character as well as the top surface subject to wear, theturned over edges 7" .being sufficiently spaced from the wearingsurfaces to avoid all metal contact with either the base or trafficpassing thereover.

Referring now to Figure 9, the blocks is may be either square or oblongin horizontal cross section. In this instance only the upper edge isbeveled as at k. The curb may. have an overlying portion 12 with whichthe bevel k engages while the proximate block K may be spaced from block7:: to receive an inverted frustro-pyramidal yielding member Z boredcentrally as at Z to receive bolt m. If desired the head m of bolt m maybear upon a metallic seat member a to minimize wear on the yieldingmaterial. Bolt on maybe either an expansion bolt or a bolt of the usualkind in which'event the threaded end may engage the threaded hole of ametallic nut 0 cast in the concrete base b. Upon assembly, by screwingthe bolt into. the nut 0, the seat member 'n, is caused to compress thebeveled resilient retaining member Z which in'turn engages the bevelededges is, k of adjacent blocks to cause all of the resilient blocks tobe retained under internal static pressure ina manner which will bereadily understood upon inspection of .Figure 9.

Various resilient blocks and means fo'r'f retainlng them undercompression and the V manner of assembling them into a complete pavementhave been disclosed. It will be understood that the invention is not tobe limited to the precise relation of elements illustrated in thedrawings but various combinations thereof will occur to those skilled inthe art and are to be deemed withinthe scope of the present invention.

.WVhat we claim is l. A paving block comprising a block of rubber andmeans to retain said material under compression. 7

2. A paving block comprising a block of rubber and metallicmeansencircling a portio n of saidblock to retain the material undercompression. i

3. A paving block comprising a block of rubber, metallic meansencircling aportion of said block, and meansto causesaid encirclingmeansto maintain said block under compression.

4:. A roadway comprising a rigid, solid.

base, blocks of rubber supported on said base, and a" plurality of meansto maintain said blocks under compression. v I

5. A roadway comprising a rigid, solid base, blocks of, rubber.supported on said base, interlocking means, and] a plurality.

of means to maintain said blocks under compression.

This specification signed this l i day of July A. D. 1924.

ALFRED F. MAsURYf AUGUST H. LEIPER' I.

